<template>
    <div>
        <!--面包协导航区域-->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!--卡片视图区域-->
        <el-card>            
            <el-row :gutter="20">
                <el-col :span="8"> 
                    <!--搜索与添加区域-->
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList()">                
                        <el-button slot="append" icon="el-icon-search" @click="getUserList()"></el-button>
                    </el-input>                  
                </el-col>
                <el-col :span="4">  
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>                  
                </el-col>
            </el-row>
            <!-- 用户列表区-->
            <el-table
                :data="userlist" border stripe
                >
                <el-table-column type="index">

                </el-table-column>
                <el-table-column
                    prop="username"
                    label="姓名">
                </el-table-column>
                <el-table-column
                    prop="email"
                    label="邮箱">
                </el-table-column>
                <el-table-column
                    prop="mobile"
                    label="电话">
                </el-table-column>
                <el-table-column
                    prop="role_name"
                    label="角色">
                </el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch @change="userStateChange(scope.row)"
                            v-model="scope.row.mg_state">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column
                    label="操作"
                    width="180">
                    <template slot-scope="scope">
                        <el-tooltip  effect="dark" content="修改用户" placement="top" :enterable="false">
                            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                        </el-tooltip>
                        <el-tooltip  effect="dark" content="删除用户" placement="top" :enterable="false">
                            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                        </el-tooltip>
                        <el-tooltip  effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>                    
                </el-table-column>
            </el-table>
            <!--分页区-->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[1, 2, 5, 10]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>            
        </el-card>
        <el-dialog
            title="添加用户"
            :visible.sync="addDialogVisible" @close="addDialogClosed"
            width="50%">
            <!--内容主题区-->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!--底部区 按键区-->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>

        <!--修改用户的对话框-->
        <el-dialog
            title="修改用户"
            :visible.sync="editdialogVisible"
            width="50%" @close="editDialogClosed">
            <!--内容主题区-->
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px"
            >
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editdialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editdUserInfo">确 定</el-button>
            </span>
        </el-dialog>
        <!--分配角色的对话框-->
        <el-dialog
            title="分配角色"
            :visible.sync="setRoledialogVisible"
            width="50%" @close="setRoledialogClosed" >
            <!--内容主题区-->
           <div>
               <p>当前用户: {{userInfo.username}}</p>
               <p>当前角色: {{userInfo.role_name}}</p>
               <p>分配新角色: <el-select v-model="selectRoleId" placeholder="请选择">
                                <el-option
                                v-for="item in rolelist"
                                :key="item.id"
                                :label="item.roleName"
                                :value="item.id">
                                </el-option>
                            </el-select>
                </p>
           </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoledialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>

    </div>
</template>

<script>
export default { 
    data(){
        //验证邮箱规则
        var checkEmail=(rule,value,cb)=>{
            //验证邮箱正则表达式
            if (value === '') {
                cb(new Error('请正确填写邮箱'));
                } else {
                    if (value !== '') { 
                        var reg=/^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/;
                        if(!reg.test(value)){
                        cb(new Error('请输入有效的邮箱'));
                        }
                    }
                    cb();
                }
        };       
        //验证手机号规则
        var checkMobile = (rule, value, callback) => {
            if (value === '') {
            callback(new Error('手机号不可为空'));
            } else {
            if (value !== '') { 
                var reg=/^1[3456789]\d{9}$/;
                if(!reg.test(value)){
                callback(new Error('请输入有效的手机号码'));
                }
            }
            callback();
            }
        };

        return {
            //获取用户列表的参数对象
            queryInfo:{
                query: '',
                //当前页数
                pagenum:1,
                //当前每页显示多少条数据
                pagesize:2
            },
            userlist:[],
            total:0,
            //控制添加用户对话框显示与隐藏
            addDialogVisible:false,
            //修改用户对话框的显示与隐藏
            editdialogVisible:false,
            //控制显示角色对话框
            setRoledialogVisible: false,
            //添加用户的表单数据
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            //查询到的用户对象信息
            editForm:{
                id:"",
                username:'',
                email:'',
                mobile:''
            },
            //添加表单的验证规则对象
            addFormRules:{
                username: [
                    {required: true,message:'请输入用户名',trigger:'blur'},
                    {min:3,max:10,message:'用户名的长度在3~10个字符之间',trigger:'blur'}
                ],
                password: [
                    {required: true,message:'请输入密码',trigger:'blur'},
                    {min:6,max:15,message:'密码的长度在6~15个字符之间',trigger:'blur'}
                ],
                email: [
                    {required: true,message:'请输入邮箱',trigger:'blur'},
                    {validator: checkEmail,trigger:'blur'}
                ],
                mobile: [
                    {required: true,message:'请输入手机号',trigger:'blur'},
                    {validator: checkMobile,trigger:'blur'}
                ]
            },
            //修改表单的验证规则对象
            editFormRules:{
                email: [
                    {required: true,message:'请输入邮箱',trigger:'blur'},
                    {validator: checkEmail,trigger:'blur'}
                ],
                mobile: [
                    {required: true,message:'请输入手机号',trigger:'blur'},
                    {validator: checkMobile,trigger:'blur'}
                ]
            },
            userInfo:{},
            rolelist: {},
            //已选中的角色ID值
            selectRoleId:''

            
        }
    },
    created(){
        this.getUserList()
    },
    methods: {
        async getUserList(){
           const {data:res} = await this.$http.get('users',{params:this.queryInfo})
           if (res.meta.status !==200) return this.$message.error('获取用户列失败！')
            this.userlist = res.data.users
            this.total=res.data.total
            console.log(res)
        },
        //监听 pagesize改变的事件
        handleSizeChange(newSize){
            //console.log(newSize)
            this.queryInfo.pagesize = newSize
            //需要重新加载数据
            this.getUserList()
        },
        //监听 页码值 改变的事件
        handleCurrentChange(newPage){
            //console.log(newPage)
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        //监听状态修改事件
        async userStateChange(userinfo){
            console.log(userinfo)
            const {data: res} = await this.$http.put(
                `users/${userinfo.id}/state/${userinfo.mg_state}`
            )
            if (res.meta.status !==200){
                userinfo.mg_state = !userinfo.mg_state
                return this.$message.error('更新用户状态失败！')
            }
            this.$message.success('更新用户状态成功')

        },
        //监听添加用户对话框关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields();
        },
        //添加按键事件
        addUser(){
            this.$refs.addFormRef.validate(async valid=>{
                if (!valid) return
                //发起添加请求
                const {data:res}=await this.$http.post('users',this.addForm)
                if (res.meta.status!==201){
                    this.$message.error('添加用户失败！')
                }
                this.$message.success('添加用户成功!')
                //隐藏添加户的对话框
                this.addDialogVisible = false
                //获取数据列表
                this.getUserList()
            })
        },
        //显示编辑用户的对话框 
        async showEditDialog(id){
            
            const {data:res} = await this.$http.get('users/' +id)
            if (res.meta.status !==200){
                return this.$message.error('查询用户失败')
            }
            this.editForm = res.data
            this.editdialogVisible= true
        },
        //监听修改用户修改表单关闭事件
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        //修改并提交
        editdUserInfo(){
            this.$refs.editFormRef.validate(async valid=>{
                if (!valid) return
                //发起添加请求
                const {data:res}=await this.$http.put('users/'+this.editForm.id,
                {email:this.editForm.email,mobile:this.editForm.mobile})
                if (res.meta.status!==201){
                    this.$message.error('修改用户失败！')
                }
                
                //隐藏添加户的对话框
                this.editdialogVisible = false
                //获取数据列表
                this.getUserList()

                this.$message.success('修改用户成功!')
            })
        },
        //根据ID删除用户信息
        async removeUserById(id){
            //樟框询问是否删除数据
            const conFirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
                }).catch(err =>{
                    return err
                })
                //如果取消  返回字符串为cancel
                //如果确认，返回confirm
                if (conFirmResult !=="confirm")
                {
                    return this.$message.info('已取消删除')
                }
                const {data:res} = await this.$http.delete('users/' +id)
                if (res.meta.status !==200){
                    return this.$message.error('删除失败')
                }
               //隐藏添加户的对话框
                this.editdialogVisible = false
                //获取数据列表
                this.getUserList()

                this.$message.success('删除用户成功!')
        },
        //设置角色
        async setRole(userInfo){
            this.userInfo=userInfo
            //获取所有角色列表
            const {data:res} =await this.$http.get('roles')
            if (res.meta.status !==200) {return this.$message.error('获取角色列表失败')}
            this.rolelist=res.data
            console.log(this.rolelist)
            this.setRoledialogVisible=true

        },
        //保存角色授权
        async saveRoleInfo(){
            if(!this.selectRoleId){
                return this.$message.error('请选择用户角色')
            }
            const{data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectRoleId})
            if (res.meta.status !==200)
            {return this.$message.error('设置角色失败')}
            this.$message.success('设置角色成功')
            this.getUserList()
            this.setRoledialogVisible = false
        },
        setRoledialogClosed(){
            this.userInfo={}
            this.selectRoleId=''
        }




    }

}
</script>

<style  lang="less" scoped>
    .el-row {
        margin-bottom: 20px;
        &:last-child {
        margin-bottom: 0;
        }
    }
    .el-col {
        border-radius: 4px;
    }
    .el-pagination{
        margin-top: 15px;
    }
</style>